The intrinsic nature of mind is naturally lucid, aware, bright, open, empty and cling free. It is only temporarily limited or corrupted by being mixed with adventitious obscurations.
Lama Surya Das explains & elucidates natural meditation, nowness-awareness, how to sit and gage and be, and explains his original four kinds of mindfulness.

The ten paramis (or perfections) are transformative practices of a Bodhisattva, one who is on the path to liberation. In the Zen school of Buddhism these ten paramis are generosity, ethics, patience, effort, meditation, wisdom, skillful means, spiritual aspiration, higher accomplishment, and awakened awareness. These practices become perfected qualities in an awakened one. The first 6 paramis, starting with generosity and building up to wisdom, are laid out in the Pali Canon, which is said to record the actual words of the Buddha. Later, in Mahayana sutras, these 6 were expanded to 10 to provide the far-reaching, well-rounded principles for living the good life. You can read all about these perfections in Lama Surya Das' book, Buddha Is As Buddha Does